Title :
On transition bandwidth of constrained least-squares filters
Author :
Zhang, Jia-Rui ; Shieh, Tzon-Liang ; Lan, Leu-Shing
Author_Institution :
Dept. of Electron. Eng., Nat. Yunlin Univ. of Sci. & Technol., Yunlin
Abstract :
Constrained least-squares (LS) filter design combines the features of least-squares and minimax design. In the constrained LS approach, a cutoff frequency is specified whereas the passband edge and stopband edge are left unspecified. This paper presents an empirical formula to quantify the relationship among transition bandwidth, ripple magnitude, and filter order for the class of constrained LS filters. Extensive experiments show good agreement between the predicted and measured data.
Keywords :
FIR filters; filtering theory; least squares approximations; minimax techniques; FIR filters; LS filter design; constrained least-squares filters; empirical formula; ripple magnitude; transition bandwidth; Algorithm design and analysis; Band pass filters; Bandwidth; Cutoff frequency; Design engineering; Distortion; Finite impulse response filter; Minimax techniques; Narrowband; Passband;
Conference_Titel :
Circuits and Systems, 2008. MWSCAS 2008. 51st Midwest Symposium on
Conference_Location :
Knoxville, TN
Print_ISBN :
978-1-4244-2166-4
Electronic_ISBN :
1548-3746
DOI :
10.1109/MWSCAS.2008.4616805
